<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
	xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
<head>
<meta charset="UTF-8">
<title>页面丢失</title>
</head>
<body>
	<center>
		<h1>页面丢失！！</h1>
	</center>
</body>
</html>